Solar activity was low. Region 1625 (N14E36, Dao/beta-gamma) remained the most flare-productive region with frequent low-level C-class subflares. It showed some intermediate spot decay during the period, but retained its beta-gamma magnetic configuration. Region 1620 (S13W81, Eai/beta-gamma) produced the largest flare of the period: a C5 at 30/1748 UTC as it approached the west limb. No significant changes were noted in the region, but analysis was hampered due to limb proximity. No significant changes were noted in Region 1623 (N08E35, Dao/beta-gamma). There are currently 4 numbered sunspot regions on the disk. No Earth-directed CME activity occurred during the period.

Activity is expected to be low through 03 December with a slight chance for an isolated M-class flare. At present, Regions 1620 and 1625 appear to be the most capable of producing isolated M-class activity.

Geomagnetic field activity was at quiet levels with no sign of the CME passage that was expected to begin around 30/0000 UTC. Solar winds were low in the approximate 326 to 363 km/s range. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 103 pfu.

Geomagnetic field activity is expected to increase to quiet to unsettled levels on 01 December with a slight chance for active levels due to CH HSS effects. Activity is expected to decrease to mostly quiet levels during 02 - 03 December as the CH HSS subsides.

  觀測的       30 Nov 111
  預測的   01 Dec-03 Dec 105/100/100
  90天平均值        30 Nov 122

  觀測的 Afr/Ap 29 Nov  002/002
  估算值     Afr/Ap 30 Nov  003/004
  預測的    Afr/Ap 01 Dec-03 Dec  007/008-004/005-005/005